Year 2021, Month 03
- 01: The Pelican Nebula in Red and Blue
- 02: Ingenuity: A Mini-Helicopter Now on Mars
- 03: Stars over an Erupting Volcano
- 04: Mars in Taurus
- 05: A Little Like Mars
- 06: Perseverance Takes a Spin
- 07: Pillars of the Eagle Nebula in Infrared
- 08: Three Tails of Comet NEOWISE
- 09: Perseverance 360: Unusual Rocks and the Search for Life on Mars
- 10: NGC 1499: The California Nebula
- 11: Zodiacal Light and Mars
- 12: Messier 81
- 13: SuperCam Target on Ma'az
- 14: A Flag Shaped Aurora over Sweden
- 15: Meteor Fireballs in Light and Sound
- 16: IC 1318: The Butterfly Nebula in Gas and Dust
- 17: The Surface of Venus from Venera 14
- 18: Stardust in the Perseus Molecular Cloud
- 19: Central Lagoon in Infrared
- 20: The Leo Trio
- 21: The Antikythera Mechanism
- 22: From Auriga to Orion
- 23: Mars over Duddo Stone Circle
- 24: Aurorae and Lightning on Jupiter
- 25: Curiosity: Sol 3048
- 26: The Medusa Nebula
- 27: Exploring the Antennae
- 28: SuitSat-1: A Spacesuit Floats Free
- 29: M64: The Evil Eye Galaxy
- 30: Red Sprite Lightning over the Andes
- 31: M87's Central Black Hole in Polarized Light